Quick Answer
DDR5-7200 is overkill for the Core i5-14400F: this locked, memory-insensitive chip cannot use that speed meaningfully, and high-speed kits can be harder to stabilise. A 2x16GB DDR5-6000 kit with XMP gives the same real-world gaming result for less money and fewer headaches.
Why DDR5-7200 Is Wasted Here
The 14400F is a value-focused locked CPU whose gaming performance changes little with memory speed. Running DDR5-7200 instead of 6000 yields essentially no extra frames in real games on this chip, while costing significantly more and demanding a capable board and clean tuning to run stably. Very high memory speeds also raise the chance of boot or stability issues, which is the opposite of what a value build wants.
If you have a 7200 kit already it will work on a supporting B760 or Z790 board, but for a new build it is the wrong place to spend.
The Smarter Memory Choice
Pair the 14400F with a 2x16GB DDR5-6000 kit (32GB), enable XMP, and confirm QVL support. This gives full gaming performance for the CPU at a sensible price and with reliable stability. Put the money saved by skipping a 7200 kit straight into the GPU, which is the component that actually raises frame rates in this build.
FAQ
Is DDR5-7200 worth it for the 14400F?
No. The locked 14400F cannot use that speed meaningfully, so 7200 adds cost and stability risk for no real gaming gain. A 6000 kit gives the same result for less.
Will a 7200 kit even run on a 14400F build?
On a supporting board, yes, but it may need careful tuning to be stable. For a value build it is simpler and cheaper to run a reliable 6000 kit with XMP.
Where should the saved money go?
Into the GPU. Since the 14400F barely responds to RAM speed, redirecting the cost of a 7200 kit to a stronger graphics card delivers far more frames.
-7200 on a 14400F. A stable 32GB DDR5-6000 kit with XMP performs the same in games, and the saving buys a meaningfully better GPU.